"Remember when I was speculating there might be tunnels or secret paths that lead elsewhere?That's our chance!I still believe that our culprit is someone above suspicion. "

“Ok, lead the way. I didn’t see anything, but maybe you will.”

"Wha? Do you guys see a secret passage or something?" even though Cat seems to not have a clue she tries again anyway looking around the Crypt. Perception 21 for secret doors

(Yeaee! I got one!)

the detect magic spell manages to discover traces of Necromancy all around the coffin where the hand was, and on the skeletons. 

you do not find anything at first, and no secret doors- However, Cat, you find at the ground, Behind the Hand's coffin. you manage to find a small piece of fabric burned on an end. Since your detect magic is still active, you can sense a few traces of the Conjuration school from the burned end of the fabric. and by looking closer at the ground, there's faint traces of conjuration magic around.

Arcana check 2

"I think this has conjuration magic I'm not sure I'll have to find the Inspired hands place and study a little." Cat says and hands the cloth to Lore.

“So what does that mean,” Drux asks. “We moving on, or do you think there’s more to this particular building?”

"Hmm may I make a suggestion then?since we have that fabric we could find on our own to whom it belongs using magic or we could try to find where they sell it.Ask then the owners of that shop if they see someone who was wearing or bought those clothes" says Piers as he waves his hands in a fashion that seems he is connecting dots.Suddenly he stops his monologue and adds "I remember!Fala said about Vincent an investigator!he could help us find the culprit "

Cat hands Piers the cloth "We are here to patrol at the moment. That's a good idea. But doesn't that cost coin?" 

“Magic it is then. Could that lead us to him right now?”

"Fala mentioned a fee so yes it will cost but we can always come in a agreement..Does anyone has divination magic?"

Cat shakes her head.

Lore shakes his head then looks off into the darkness, "So...noone wants to search this place more thoroughly?"

(( Or have I misunderstoond? Did we search the corridors from which the skeletons came? ))

(conjuration magic means the guy could of teleported I believe. But I don't think any of us knows this, less a good arcana check could figure.) 

(Means also he is a summoner but you are right so let's roll 23 arcana )

Quote from Ereshion >>

Lore shakes his head then looks off into the darkness, "So...noone wants to search this place more thoroughly?"

(( Or have I misunderstoond? Did we search the corridors from which the skeletons came? ))

 “I kind of already searched down that way Lore. I didn’t see much but goo and bones. But maybe your keen eyes will see something I missed. 

Cat says to Ambrose "Do you have contacts that could trace such magics to its source?"

ambrose scratched his chin, looking at cat "I had to deal with magic casters in the past, so i do have contacts that can trace magic. However, they normally take a while to Report the results. I don't think this will be a problem, the criminal probably won't give up so easily and will try to restart the ritual, and make it harder to find the hand. and about vincent. . ." he takes a small vial of holy water from his pouch, throwing the water at the coffin "i don't trust him, honestly. normally good investigators and detetives have criminal contacts that give them their info. . . but it's only what i think, i've heard a bit of what they say to him, and apparently he never gave less than a perfect service."

(there's nothing on the corritors, only bones and the weapons used by the skeletons. . . oh, and some rats and spiders, too.)

“Alright, let’s get back to the patrol then. Would you like us to call you to aid us again or just handle this guy on our own if we make contact again?”